Single ply

Generally described as either thermoplastic or elastomeric, single ply membranes are rubber like and water proof. There are many installation processes for single ply, such as fully adheard, mechanically fastened, loose lain and ballasted or as "green" roofs. More recent innovations such as coloured membranes and factory produced roof profiles have provided the opportunity to mimic the appearance of traditional roofing systems such as lead and copper. Single ply roofs don't necessarliy need additional surface matereals because they are compounded with additives such as UV stabilisers altough paving, ballast and green roofs are regularly used.